Exploratory Range for Babies. The ACTIVITY PYRAMID provides fun stimulation. Rings are stackable and each ring contains an activity inside whether it be a squeaker or crinkly sound to entice the world of Baby discovery! Specifications: - Age: 0m+ - Surface Wipe Only - Filled with polyester fibre - Fabric polyester and cotton - Fully tested to meet European and US safety regulations (EN71, ASTM, AZO)